Truck.



J. H. SMITH.

TRUCK.

APPLICATIONflLED JAN. 20. I915. M51329, Patented Aug. 31, 1915.

I 4 SHEETSSHEET I.

1. r2. SMITH.

TRUCK.

APPLICATION FILED JAN. 20, 1915.

Patented; A11 31, 1915.

4 SHEETS-SHEET 2.

M W 00% 6 U l n twameo V Mk? L H. SMITH.

TRUCK.

APPLICATION FILED JAN.20. 191s.

Patent-ed A11 31, 1915. 1

mmqm o 4 SHEETS-SHEET 3- 4 m mm W JOSIAH H. SMITH, OF PHILADELPHIA, FENNSYLVANIA, ASSEGNOE T "WILLIABT H.

TIGERMAN, OF PHILADELPHIA, PENNQYLVANIA.

TRUCK.

Specification of Letters Patent.

.L 1 a 4 'r Patented ring. or, 133.8. l

Application filed January 20, 1915. Serial No. 3,293.

To all whom it may concern:

Be it known that l, JosmH H. SMITH, a citizen of the United States, residing at Philadelphia, in the county of Fhiladelphia and .State of Pennsylvania, have invented certain new and useful Improvements in Trucks, of which the following is a specification.

My invention relates to improvements in trucks. and more particularly to trucks designed for supporting the cars of suspension railways of the monorail system, the object of the invention being to provide a truck of the character stated having an arched hanger rigidly secured to the side frames of the truck, and providing a pivotal mounting for the arched beam of a car frame.

A further object is to provide a truck of the character stated which is adapted to sup port an electric motor driving both wheels of the truck by sprocket chains, and supporting the car at its pivotal connection in vertical alinement with the center of the truck, so as to support the greatest weight at the point of greatest strength.

A further object is to provide a truck of the character stated which permits of the necessary pivotal movement to allow the truck to take the curves of the rail, yet rigidly support the car against vertical movement.

With these and other objects in view, the invention consists in certain novel features of construction and combinations and arrangements of parts as will be more fully hereinafter described and pointed out in the claims.

In the accompanying drawings, Figure 1 is a fragmentary view in side elevation illustrating my improvements. Fig. 2 is a View in side elevation of the truck showing a portion of one end broken away to illustrate the construction of bearing box. Fig. 3 is a view in transverse section on the line 33 of Fig. 2. Fig. 4 is a fragmentary view in section on the line 44 of Fig. 3. Fig. 5 is a top plan view of the truck. Fig. 6 is a fragmentary Y .ew in longitudinal. horizontal section through the central portion of 1e truck on the line 6-6 of Fig. 2, and Fig. 7 is a perspective view of one of the blocks 6.

1 represents uprights or standards sup porting an elevated structure 2. from which, at regular intervals, cantilevers 3 project and support a rail 4:.

5, '5, represent the parallel side frames of my improved truck. These side frames are preferably castings connected at opposite sides of their centers by Web blocks 6, the side flanges? of which being securely riveted to the side frames 5. The ends of the side frames 5 are provided with forks 9, in which bearing blocks 10 are mounted to slide, and coiled springs 11 are positioned between the upper ends of the bearing blocks and the upper ends of the yokes.

The bearing blocks 10 receive axles 8 carried by wheels 12, said wheels located be tween the side frames, and adapted to run upon the rail 4:. A depending arched hanger 13 is rigidly secured to and forms a fixed part of my improved truck as will now be described. a

The hanger 13 is composed of a pair of side plates 14 of general arch shape, having angle bars 15 and 16 at their edges, which are riveted to the side plates, and also to outer and inner plates 17 and 18 respectively so that the hanger constitutes in effect, a box structure, and is preferably widest at its upper portion as shown clearly in Figs. 1 and 2, and reduces appreciably in width at its lower portion, although this difference in width may be varied as may be desired.

The side plates 1% of the hanger 13, at their upper ends, are recessed as shown at l to accommodate the side frames 5 of the truck, but between said recessed portions 19, the side plates 14 are securely riveted to the center web 20 of the blocks 6. The filler blocks 21 are positioned at the sides of the side frames 5, and -strengthening angles 22 connect the side plates l-l with the side frames 5. The side frames 5 are preferably in the shape of T-beams for strength, but the invention is, of course, not limited to the particular shape employed.

In the lower end of the hanger 13, a casting 23 is securely riveted. This casting has perforated integral cars 24: and 25 spaced apart and constituting bearings for a king pin 26 which is projected through a bearing sleeve 27 secured to and forming part of an arched girder 28. This girder 28 extends upwardly from, and is rigidly secured to the car 29. and as shown clearly in Figs. 2 and 4, consists of parallel side plates 30, strengthened by angles 31 at their edges, and said angles and side plates secured to lateral flanges 32 on the hearing sleeve 27.

sad

It will be noted that the casting 23 is so shaped that hearing sleeve 27 is free to turn within certain limits, so that the truck will be given the necessary pivotal movement to accommodate itself to the shape of the rail 4.

t will be noted, particularly by reference to Figs. 2 and 3, that the bearing 27 is in vertical alinement with. the center of the truck, both longitudinally and transversely of the truck, so that the strain is sustained at the point of greatest strength and the weight is evenly distributed throughout the truck.

(in top of the truck, at its center, I support an electric motor 33 driving a pair of sprocket wheels 34 and 35 respectively. On the axles 8, I provide sprocket wheels 36 and 37 respectively, and connect the sprocket wheel 84- with sprocket wheel 37 by means of an endless chain 38. I alsoconnect the sprocket wheel 35 with the sprocket wheel 36 by means of an endless chain 39, so that both aXleS are positively driven by the electric motor.

As seen clearly in Fig. 2, I provide the bearing boxes 10 with removable lubricant or waste boxes 40, secured in place by bolts {1-1 and adapted to be moved into and out of the bottom of the bearing boxes as occasion may require.

Various slieht changes might be made in the general form and arran ement of parts described without departing from my invention. and hence I do not limit mvself to the precise details set forth, but consider myself at liberty to make such changes and alterations as fairly fall within the spirit and scope of the appended claims.

flaring thus described mvinvention,what I claim as new and desire to secure by Letters Patent is:

1. The combination with a car having an arched e'irder. of a truck having an arched hanger pivotallv connected to and supportin the girder, substantially as described.

2. The combination with a car having an a 'chcd girder, of a. truck having an arched l'iane'e pivotally connected to and support inn the girder. said arched hanc'er proiectinc laterally from the center of the truck,

1 sulmtantiallv as described 3. The combination with a car havinsr an motor with both wheels of the truck, substantially as described.

5. In a truck, the combination with a pair as described.

6. In a truck, the combination with a pair of side frames, wheels supporting the ends of the side frames, blocks between the Side frames secured to the side frames, a hollow arched hanger, the side plates of which having recesses therein to receive the side frames and between the side frames secured to said blocks, a casting secured to the lower end 01 the hanger and having bearings spaced apart, a car, and an arched beam on the car.

pivotally supported between the bearings, substantially as described.

7. In a truck, the combination with a pair of side frames, wheels supporting the ends of the side frames, blocks between the side frames secured to the side frames, a hollow arched hanger, the sideplates of which hav-' ing recesses therein to receive theside frames and between theside frames secured to said blocks, a casting secured to the lower end of the hanger and having bearings spaced apart, a car, an arched beam on the car having a bearing between its ends located be tween the bearings of the hanger, and a king pin in all of said bearings, substantially as described.

8. In a truck, the combination with a pair of side frames, wheels supporting the ends of the side frames, blocks between the side of the arched girder and having lateraliianges secured to the arched girder, said bearing sleeve located between the bearings of the hanger, and a vertically movable.

king pin positioned in the said bearings, substantially as described.

9. in a. truck, the combination with a pair of side frames, wheels supporting the ends of the side frames, blocks between the side frames secured to the side frames, a hollow arched hanger, the side plates of which having recesses therein to receive the side frames and between the side frames secured to said blocks, a casting secured to the lower end of the hanger and having bearings spaced apart, a car, an arched beam onthe car pivotafly supporteci aetwei bearings iocateci am. meat with the long-iii! of' the $131131.

1 a truck, the cmnbinaiian Wih i a pair of side frameq, wheels supporting the nus 0i: side i. 111 35, blocks between Hi-Q SD16 frames semued to iii: side franws,

(and. in vex-ti iiiniiy ,viLii the ion 0'3 the truck, 5

11. 111 a pair of side 'irmnus, xci Qm is Sf the sidv frames, 1

James secured an the side frames, a hoiiow arched hanger, the side plates of which ving recesses therein to receive the side its; and between the side frames 5&- eui-ed to said blocks, a casting secured to the inWQI' end of the hanger and having bearspmzeii apiu'fi. a car, an arched girder secured, to the car, a bearing sleeve located mi 'i'iie saute: of the arched girder anti haw ii'i hit-(m1 flange? secured to ar'chei girder, m1; s; sleeve located between the i ,dl'illgfi of the hanger, a vertically movable, king pin positimncd in the said bear- :2 (i n airings tC-Qi beiow and in vari. ,fli zzlinemont wish the longiiudinai and imnswz'se (:e'nier 5 iii? truck, suiwtantiaiiy as dcscz'ibad.

testimony whereof I 112W name to this s 'iecification in i two subsmibing vwiincsses.

JQSIAH "W itnessee;

7* i Cims. it. Poms, Si *3. FOSTER. 

